Project Management
Capital Works Projects
- Sea Water Plant Upgrade
- Sub-Structure Piles Replacement
- Marina & Wave Attenuator Refurbishment
- Roof Membrane Replacement
- Roof Netting (bird damage rectification project)
- Decking and Cladding project
- Smoke Management System Rectification Project
- Intercom Upgrade Project
- Louver and Awning Replacement Project
- Marina Electric Poles Rectification and Testing
- Boiler Replacement
- Energy Saving Lighting Project
Excel has extensive experience in the delivery of small and large capital works programs as a value-add service. Our vast Project Management experience and services include:
- Defining an overall schedule and managing the schedule of upgrade works
- Providing regular briefings and updates to all stakeholders and supervising on site contractors, managing liaison across all stakeholders
- Managing and documenting any variations that may arise and seeking appropriate consultation with the Client and relevant stakeholders
- Ensuring that the project is successfully delivered with minimal delays and variations, subject to external constraints and factors
Case Studies
Previously the absorption chiller installed on site operated 24/7 365 days per annum. There were very few chillers of this type located in Australia, maintenance contractors and spare parts were difficult to source, its performance was erratic and finally a fault was located within one of the pressure vessels causing the system to allow air to mix with the chemicals
within it causing poor performance and unreliability.
A new chiller was installed that;
- Reduced operating costs
- Reduced maintenance
- Can be monitored remotely
- Two chillers so if one is in fault there will always be one operating
The new chiller operation now has 2 chillers installed to cope with minimum call during Winter and maximum call for chilled air conditioning air during Summer.
Chiller operation:
Both the carrier chiller and the Powerpax chiller are electrically powered. When there is small demand on the air-conditioning system the carrier chiller will run cooling the various
areas of the building. If the demand increases and the returning water temperature exceeds 12
degrees Celsius the carrier chiller will cycle off and the Powerpax chiller will cycle on and handle the increased demand for air-conditioning. Once the demand has reduced the
Powerpax chiller will cycle off and the carrier chiller will cycle back on. The carrier chiller requires less power to run and thus operating the two chillers in this manner creates a
reduction in energy consumption. The new system is also linked to building management
software (BMS) so this can be monitored in the building manager’s office or even remotely.
The sea water air conditioning plant had experienced a high failure rate for a number of years. When Excel commenced July 2008 they sought approval from the site’s BMC’s to receive a report from Aecom, mechanical engineers, to investigate causes of failure and what needed to be done to achieve efficiency and reliability of the plant
Aecom found that the inlet strainers (foot valves) had been removed, the inlet pipes filled with biofouling, the pumps constantly running nonstop in order not to lose the priming water, the pumps were cavitating and having to be replaced early due to severe corrosion from seawater and the cyclonic separators ceased.
None of the sea water pumps, the car park exhaust or supply fans were on VSD’s or variable speed drives. These drives change the speed of an electrical motor by controlling the power that is fed into the machine. VSD’s were introduced throughout the site to reduce energy consumption.
Thus the upgrades ensured reliability, considerable energy savings and a reduction of carbon dioxide emissions generated by the production of electricity.
Gas hot water systems at various sites managed by Excel have reached the end of their lifecycles. Typically the system in place was a boiler that ran constantly and was not adjustable to demands at peak/off peak times.
Following consultation with Strata Committees and after sourcing quotes from a number of contractors, new instant 5 ½ energy star rated hot water system were installed. This upgrade incorporated:
- Installation of Rinnai Demand Duo boilers
- Replacement of Rheem Cylinders with Rinnai Stainless Steel Cylinders that contain a thermostat;
- Installation of Demand Duo Flue Headers
- Replacing the existing boiler circulating pumps with Rinnai specific pumps
This new system is more efficient because it provides hot water as required instead of continuous heating. Following the installation, gas usage on all sites dropped by approximately 5%.
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